Use btlinux HAL implementation

Use reference HAL implementation(btlinux) with vhci drvier

Bug: 178702430
Bug: 178702496
Test: check if BT works well as is

Change-Id: Ib2e790f6782ab7bcbf6f2947c68d924e9a696ca4
diff --git a/shared/BoardConfig.mk b/shared/BoardConfig.mk
index c77440d..0c5efe0 100644
--- a/shared/BoardConfig.mk
+++ b/shared/BoardConfig.mk
@@ -158,6 +158,8 @@
 
 # vendor sepolicy
 BOARD_VENDOR_SEPOLICY_DIRS += device/google/cuttlefish/shared/sepolicy/vendor
+
+BOARD_SEPOLICY_DIRS += system/bt/vendor_libs/linux/sepolicy
 BOARD_VENDOR_SEPOLICY_DIRS += device/google/cuttlefish/shared/sepolicy/vendor/google
 # product sepolicy, allow other layers to append
 PRODUCT_PRIVATE_SEPOLICY_DIRS += device/google/cuttlefish/shared/sepolicy/product/private